Polar M400 vs. Garmin Forerunner 235 vs. Michael Kors Access Sofie vs. Fitbit Flex vs. Microsoft Band

 
M400
Forerunner 235
Access Sofie
Flex
Band
 PolarM400Remove Buy NowGarminForerunner 235Remove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitFlexRemove Buy NowMicrosoftBandRemove Buy Now

Basic Info

Suggested Price$200$299.99$395$100$200
Release20142017201720132014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 hours to 30 days9 days1 day5 days2 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a215 x 180390 x 390 1.19 inchesNA320 x 106
Sizen/a1.23 inchesNA1.37 inches
TouchAMOLDEDNA
Typen/aMIPLEDCapacitative TFT

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM1 ATM1 ATMIP67

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0NANA
Apps
Music

Wearables by Microsoft

Microsoft Band 2

All Wearables